Okey. But i am in the beginning and same problem like before : Your iPhone could not be activated because the activation server cannot be reached. Try connecting your iPhone to iTunes to activate it, or try again over the cellular connection in a couple of minutes. You can also try to activate usin a Wi-Fi connection.
Maybe i should talk to my friend again !

Okey. But i am in the beginning and same problem like before : Your iPhone could not be activated because the activation server cannot be reached. Try connecting your iPhone to iTunes to activate it, or try again over the cellular connection in a couple of minutes. You can also try to activate usin a Wi-Fi connection.
Maybe i should talk to my friend again !

It is most likely that there is a delay from when the unlock is requested until it is actually completed. If you just had it requested today, it's probably just not completed yet.